采用七参数法实现两个空间直角坐标系之间的坐标转换-Two seven-parameter method used to achieve spatial Cartesian coordinate system coordinate transformation between

ELEVAT calculation for elevation, zenit angle and spatial distance e_az_s=elevat(D,RHO) computes the elevation, the zenit angle and the spatial distance between a satellite(j) and a receiver(i). The receiver position (D) is a 3-by-3 matrix

矢量空间分析的关键算法研究，包括叠加分析、缓冲区分析-Research on spatial analysis，including the overlay analysis and buffer analysis

GNSS空间大地测量导航定位卫星空间位置坐标计算详细程序-Space geodetic GNSS navigation and positioning satellite spatial position coordinate calculation detailed procedures